cerium(III) chloride in tetrahydrofuran T=20°C;

1: 52 percent / Li2MnCl4 / tetrahydrofuran; diethyl ether / 1.5 h / 0 - 20 °C 2: 74 percent / anhydrous cerium(III) chloride / tetrahydrofuran / 20 °C View Scheme

potassium hydrogensulfate T=110°C; P=180.014 Torr; 3 h;

1.1: 37 percent / potassium hydrogen sulfate / 3 h / 110 °C / 180.01 Torr 2.1: methyl magnesium chloride / tetrahydrofuran / 2 h / Heating 2.2: 76 percent / tetrahydrofuran / Heating View Scheme

1.1: 37 percent / potassium hydrogen sulfate / 3 h / 110 °C / 180.01 Torr 2.1: methyl magnesium chloride / tetrahydrofuran / 2 h / Heating 2.2: 76 percent / tetrahydrofuran / Heating 3.1: 80 percent / lithium aluminum hydride / tetrahydrofuran / 3 h / Heating View Scheme